XML 152 R62.htm IDEA: XBRL DOCUMENT v3.20.4
Investment Securities, AFS and HTM Securities Amortized Costs and Fair Values (Details) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Investment securities AFS    
Amortized Cost $ 3,028,399 $ 3,251,950
Gross Unrealized Gains 60,612 30,920
Gross Unrealized Losses (3,570) (20,284)
Fair Value 3,085,441 3,262,586
Investment securities HTM    
Investment securities held to maturity 1,879,005 2,205,083
Gross Unrealized Gains 149,938 79,744
Held-to-maturity, Gross Unrealized Loss 0 (8,363)
Fair Value 2,028,943 2,276,465
U.S. Treasury securities    
Investment securities AFS    
Amortized Cost 26,436  
Gross Unrealized Gains 95  
Gross Unrealized Losses 0  
Fair Value 26,531  
Investment securities HTM    
Investment securities held to maturity 999 999
Gross Unrealized Gains 25 19
Held-to-maturity, Gross Unrealized Loss 0 0
Fair Value 1,024 1,018
Obligations of state and political subdivisions (municipal securities)    
Investment securities AFS    
Amortized Cost 425,057 529,908
Gross Unrealized Gains 25,605 16,269
Gross Unrealized Losses 0 (18)
Fair Value 450,662 546,160
Investment securities HTM    
Investment securities held to maturity 1,441,900 1,418,569
Gross Unrealized Gains 133,544 69,775
Held-to-maturity, Gross Unrealized Loss 0 (1,118)
Fair Value 1,575,445 1,487,227
FFELP asset backed securities    
Investment securities AFS    
Amortized Cost 329,030 270,178
Gross Unrealized Gains 1,172 0
Gross Unrealized Losses (3,013) (6,485)
Fair Value 327,189 263,693
Investment securities HTM    
Investment securities held to maturity 0  
Fair Value 0  
Fixed-income securities    
Investment securities AFS    
Amortized Cost 3,000 3,000
Gross Unrealized Gains 0 0
Gross Unrealized Losses 0 0
Fair Value 3,000 3,000
Agency securities    
Investment securities AFS    
Amortized Cost 24,985  
Gross Unrealized Gains 53  
Gross Unrealized Losses 0  
Fair Value 25,038  
SBA    
Investment securities AFS    
Amortized Cost 8,637  
Gross Unrealized Gains 0  
Gross Unrealized Losses (53)  
Fair Value 8,584  
Investment securities HTM    
Investment securities held to maturity 0  
Fair Value 0  
FNMA/FHLMC [Member] | Residential Related Securities    
Investment securities AFS    
Amortized Cost 1,448,806 131,158
Gross Unrealized Gains 12,935 1,562
Gross Unrealized Losses (500) (59)
Fair Value 1,461,241 132,660
Investment securities HTM    
Investment securities held to maturity 54,599 81,676
Gross Unrealized Gains 2,891 1,759
Held-to-maturity, Gross Unrealized Loss 0 (15)
Fair Value 57,490 83,420
FNMA/FHLMC [Member] | Commercial mortgage-related securities    
Investment securities AFS    
Amortized Cost 19,654 19,929
Gross Unrealized Gains 3,250 1,799
Gross Unrealized Losses 0 0
Fair Value 22,904 21,728
Investment securities HTM    
Investment securities held to maturity 11,211  
Gross Unrealized Gains 0  
Held-to-maturity, Gross Unrealized Loss 0  
Fair Value 11,211  
GNMA | Residential Related Securities    
Investment securities AFS    
Amortized Cost 231,364 982,941
Gross Unrealized Gains 4,176 3,887
Gross Unrealized Losses (3) (1,689)
Fair Value 235,537 985,139
Investment securities HTM    
Investment securities held to maturity 114,553 269,523
Gross Unrealized Gains 4,260 1,882
Held-to-maturity, Gross Unrealized Loss 0 (1,108)
Fair Value 118,813 270,296
GNMA | Commercial mortgage-related securities    
Investment securities AFS    
Amortized Cost 511,429 1,314,836
Gross Unrealized Gains 13,327 7,403
Gross Unrealized Losses 0 (12,032)
Fair Value 524,756 1,310,207
Investment securities HTM    
Investment securities held to maturity 255,742 434,317
Gross Unrealized Gains 9,218 6,308
Held-to-maturity, Gross Unrealized Loss 0 (6,122)
Fair Value $ 264,960 $ 434,503